80779953 has 8 divisors (see below), whose sum is σ = 107836288. Its totient is φ = 53788464.

The previous prime is 80779943. The next prime is 80779961. The reversal of 80779953 is 35997708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-80779953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80779943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13225 + ... + 18342.

It is an arithmetic number, because the mean of its divisors is an integer number (13479536).

Almost surely, 2^80779953 is an apocalyptic number.

It is an amenable number.

80779953 is a deficient number, since it is larger than the sum of its proper divisors (27056335).

80779953 is a wasteful number, since it uses less digits than its factorization.

80779953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32423.

The product of its (nonzero) digits is 476280, while the sum is 48.

The square root of 80779953 is about 8987.7668527838. The cubic root of 80779953 is about 432.2827099671.

The spelling of 80779953 in words is "eighty million, seven hundred seventy-nine thousand, nine hundred fifty-three".